In this day and age, everyone has heard of the variable valve timing technology, which is commonly used by manufacturers. However, Nissan’s luxury brand, Infiniti, has revealed the world’s first production engine with a variable compression ratio.

The technology, called VC-T (Variable Compression-Turbocharged), allows the engine to seamlessly reduce or increase the engine’s compression ratio depending on the driving situation. The different ratios can be achieved by raising or lowering the height of the piston’s reach, thereby...